maximkulkin
commented
3 years ago What you need to do is: 1) use .getter_ex and .setter_ex instead of .getter and .setter. The .*_ex variants are the same getters and setters, except for they take a pointer to characteristic as first argument. 2) use .context field in homekit_characteristic_t to store your extra data. Then you can access it through characteristic pointer in getter and setter (and callback, although callbacks were designed prior to realizing that getters and setters will need context too, so they had a separate means to attach context which is now superseeded by characteristic context).
homekit_value_t light_on_get(homekit_charactersitic_t *ch) {
uint8_t gpio = *((uint8_t*) ch->conext);
return HOMEKIT_BOOL(gpio_read(gpio));
}
void light_on_set(homekit_characteristic_t *ch, homekit_value_t value) {
uint8_t gpio = *((uint8_t*) ch->conext);
gpio_write(gpio, value.bool_value);
}
HOMEKIT_SERVICE(LIGHTBULB, .primary=true, .characteristics=(homekit_characteristic_t*[]){
HOMEKIT_CHARACTERISTIC(NAME, "Relay 7"),
HOMEKIT_CHARACTERISTIC(
ON, false,
.getter_ex=light_on_get,
.setter_ex=light_on_set,
.context=(void*)&relay_gpios[6],
),
NULL
}),
MGPhil
rottenhowler
Hi
first of all thanks for that git and the option to programm an esp with homekit support and I appriciate any help as I am stuck here right now.
I try to have multiple relays controller by PCF8574 via I2C from ESP-01
Now I want to have that for multiple relays which would need to have a variable passed to the getter and setter function. => Copying the setter and getter code multiple times seems with different function names is not really "professional" and very frustation if I need to update something ;-)
How do I have to modify the code that it can pass an variable to getter and setter?
Initial Setter/Getter Example Code:
I tried to merge the dynamic and led sample code but the get seems not to work as homekit showes only the latest set status and does not get the update:
Thanks
Philipp